Initial commit: rustytokens — native codebase indexer + MCP server

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

tests/fixtures/cppdemo/math.hpp

@@ -0,0 +1,11 @@
+#pragma once
+
+class Math {
+public:
+    Math(int scale);
+    ~Math();
+    static int add(int a, int b);
+    int scaled(int v) const;
+private:
+    int scale_;
+};